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ACS Final exam sample questions. What volume of 0.131 M BaCl2 is required to react completely with 42.0 mL of 0.453 M Na2SO4? This is the net ionic equation for the reaction. Ba2+(aq) + SO42-(aq) ( BaSO4(s) Which ion has 26 electrons? Cr2+, Fe2+, Ni2+, Cu2+ The maximum number of electrons that can occupy an orbital labeled dxy is 1, 2, 3, or 4? ................
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